12.22% is the change from 401 to 450
Calculation steps:
[( 450 - 401 ) ÷ 401] x 100 = 12.22%
Formula
Percentage change = [(450 - 401) / 401] x 100
Subtract the new number by the original number
450 - 401 = 49
49 ÷ 401 = 0.12219451371571072
0.12219451371571072 x 100 = 12.22%